ssapy_toolkit.Accelerations

Acceleration models and utilities for orbit propagation.

Modules

accel_add(*accel_funcs)	Returns a function that sums multiple acceleration functions.
accel_circularize
accel_deltav(dv, thrust_accel, center_idx[, dt])	Build a Δv-based along-track accel profile centered at a given step.
accel_deltav_vector(dv, duration)	Compute the constant acceleration vector needed to achieve a given Δv in a set time.
accel_earth_harmonics(r)	Central gravity + J2..J8 zonal harmonics.
accel_equitorial
accel_inclination(r, v, magnitude)	Acceleration vector always in the local north/south direction, i.e. perpendicular to the radial direction but aimed toward the Earth's North pole (or South if magnitude < 0).
accel_moon
accel_plane(r, v, magnitude)	Tangential acceleration in the orbital plane, perpendicular to r̂.
accel_point_earth(r)
accel_radial(r, magnitude)	Acceleration vector pointing radially outward from Earth's center with user-specified magnitude.
accel_sun
accel_uniform_earth(r)	Piecewise gravity model: - Outside Earth: point-mass gravity ~ -mu r / |r|^3 - Inside Earth (uniform-density sphere): linear gravity ~ -mu r / R^3
accel_velocity(v, thrust_mag)	Thrust acceleration in the direction of velocity.